Yes. I think it's pretty obvious that solar is the energy source of the future, so I would be foolish not to follow that thought with investments.
But I'm keeping my investments small, the companies don't pay a dividend (and probably won't for a long time) and the sector as a whole is very very unstable. But it is the way of the future.

Long in Trina (TSL) and I'm certainly hoping the buyout won't happen as the price is way too low. I want to keep these in my hands at least for a few decades.